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    <title>Document</title>
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    <script>
        var arr1 = [1,2,3,4,5],
            arr2 = [6,7,8];
        // 合并两个数组
        var result = arr1.concat(arr2, [9, 10, 11, 12], 13, 14, 15)
        console.log(arr1)
        console.log(arr2)
        console.log(result)
    </script>
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